feat(server): parse offset from "Image_UTC_Data" (Samsung) #12712
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A Samsung phone might provide the local time (e.g. 09:00) without any timezone or offset information. If the file also includes the non-standard trailer tag "TimeStamp" in "Image_UTC_Data", we can use the unix timestamp contained within to deduce the offset. As an example, if the local date/time is "2024-09-15T09:00" and the unix timestamp is 1726408800 (which is 2024-09-15T16:00 UTC), we know that the offset is -07:00. Also see https://github.com/exiftool/exiftool/blob/0f63a780906abcccba796761fc2e66a0737e2f16/lib/Image/ExifTool/Samsung.pm#L996-L1001
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Closing in favor of upstream fix. |
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A Samsung phone might provide the local time (e.g. 09:00) without any timezone or offset information. If the file also includes the non-standard trailer tag "TimeStamp" in "Image_UTC_Data", we can use the unix timestamp contained within to deduce the offset.
As an example, if the local date/time is "2024-09-15T09:00" and the unix timestamp is 1726408800 (which is 2024-09-15T16:00 UTC), we know that the offset is -07:00.
Also see
https://github.com/exiftool/exiftool/blob/0f63a780906abcccba796761fc2e66a0737e2f16/lib/Image/ExifTool/Samsung.pm#L996-L1001